Omega Seamaster Seamaster Chronograph

Reference ST 176.007

About this watch

The Omega Seamaster ST 176.007 Seamaster Chronograph is a stunning timepiece that effortlessly combines elegance with functionality. Produced between 1972 and 1976, this classic beauty is not just a tool for telling time; it’s a piece of history, a statement of style, and a marvel of horological engineering. At the heart of the ST 176.007 is the Omega caliber 1040, an automatic chronograph movement that’s as robust as it is reliable. This movement is actually Omega’s version of the Lemania 1340, known for its durability and precision. With a 40-hour power reserve and 17 jewels, this movement is designed for performance. The design of the Omega ST 176.007 is truly captivating, with a cushion-shaped case measuring 38.50 mm in diameter that strikes the perfect balance between boldness and wearability. The sunburst blue dial is one of the most striking features of this timepiece, offering versatility and sophistication. Whether you’re at the office or enjoying a night out, this watch is sure to enhance your style with its elegant design and robust functionality.

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Key Features

Omega caliber 1040 automatic chronograph movement
Cushion-shaped stainless steel case measuring 38.50 mm in diameter
Sunburst blue dial with stick indexes and hands
60 meters water resistance, suitable for everyday wear
Plexiglass crystal offers a soft, warm look
Robust automatic chronograph movement with 40-hour power reserve
Date complication ensures precise timekeeping

Specifications

Brand

Omega

Family

Seamaster

Model

Seamaster Chronograph

Reference

ST 176.007

Movement

1040

Movement Features

Small Seconds, Minutes, Additional 24 Hour Hand (adjustable)
Date
Chronograph

Case

Stainless Steel 38.5mm

Dial Color

Blue

Crystal

Plexi

Water Resistance

Current Listings

[US] Omega Seamaster Professional 300m - Green Dial - 210.30.42.20.10.001 - Full Set

Omega - 210.30.42.20.10.001 · $5,475

Up for sale is an Omega Seamaster Professional 300m - Green Dial - 42mm Watch functions perfectly mechanically, without issue.

Condition: Fantastic with minor hairlines
Case size: 42mm
Depth rating: 300m

Posted at

May 21, 2026, 6:32 AM

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[US] Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 232.30.46.21.01.001 - Full Set

Omega - 232.30.46.21.01.001 · $4,375

Up for sale is an Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm.

Condition: Fantastic with minor hairlines on case, clasp, or bracelet
Case Size: 45.5mm diameter
Depth Rating: 600m

Posted at

May 21, 2026, 6:19 AM

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Omega Seamaster Planet Ocean 37.5mm

Omega - 232.90.38.20.03.001 · $3,600

This Omega Seamaster Planet Ocean is a 37.5mm titanium watch that feels proportionate on smaller wrists while maintaining its character.

Condition: Honest wearable condition with minor marks on the bezel and crown
Movement: Omega 8520 Co-Axial Chronometer
Power reserve: 50 hours
Case material: Grade 5 Titanium

Posted at

May 21, 2026, 12:45 AM

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Omega Seamaster Diver 300M -01/26 – Full Kit – $4,425 Shipped

Omega - Seamaster Diver 300M -01/26 · $4,425

This Omega Seamaster Diver 300M features a white wave dial and comes with a full kit, including inner/outer boxes, cards, manuals, and accessories. The watch is in very good condition with minimal marks on the case and bezel.

Condition: Very good pre-owned condition
Case size: 40mm diameter
Water resistance: 300m

Posted at

May 21, 2026, 12:31 AM

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Omega Seamaster Diver 300 M l Blue dial 42MM l 210.32.42.20.03.001 Full Set

Omega - 210.32.42.20.03.001 · $4,175

This Omega Seamaster Diver 300 M features a blue ceramic bezel and dial, with laser-engraved waves and a date window at 6 o'clock.

Case size: 42mm
Bezel material: blue ceramic
Dial color: polished blue ceramic

Posted at

May 21, 2026, 12:03 AM

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Omega Seamaster 300 Heritage 234.30.41.21.01.001 Full Set (2022) – Very Good Condition

Omega - 234.30.41.21.01.001 · $4,699

This Omega Seamaster 300 Heritage features a classic vintage-inspired design, black dial, and in-house Co-Axial Master Chronometer movement.

Condition: Very good condition
Movement: in-house Co-Axial Master Chronometer
Bracelet condition: some cosmetic wear consistent with normal use

Posted at

May 20, 2026, 11:31 PM

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Omega Seamaster Diver 300M Ref. 212.30.41.20.03.001 Box & Papers Very Good Condition

Omega - 212.30.41.20.03.001 · $3,299

This Omega Seamaster Diver features a blue wave dial and ceramic bezel with an iconic design.

Condition: Very good condition overall
Box Papers: Yes, includes original inner box, warranty card, manual, pictograms card, and full links
Movement: Co-Axial automatic

Posted at

May 20, 2026, 11:10 PM

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Omega Seamaster Diver 300 M l Blue dial 42MM l 210.32.42.20.03.001 Full Set $4175

Omega - 210.32.42.20.03.001 · $4,175

This is a stainless steel Omega Seamaster Diver 300 M with a blue ceramic bezel and dial, featuring laser-engraved waves and a date window at 6 o'clock.

Case material: stainless steel
Bezel material: blue ceramic
Dial color: polished blue ceramic

Posted at

May 20, 2026, 10:11 PM

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View listing on r/WatchExchange